Across
- 3. – Change in a population's traits over generations
- 4. – A random change in DNA that can lead to new traits
- 6. – Changes that help a species survive in their environment
- 8. – The units of heredity passed from parents to offspring
- 9. – Pests that carry genes to survive chemical sprays
Down
- 1. – Individuals most likely to survive and reproduce
- 2. – The actual group that changes over time during evolution
- 5. – The process where nature picks who survives
- 7. – Different versions of a gene